Home / 1,919,790.82-2,879,858.40-499,859.20

Finding the Fourth Proportional to 1,919,790.82, 2,879,858.40 and 499,859.20

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Solution

The fourth proportional to 1,919,790.82, 2,879,858.40 and 499,859.20 is: 749,833.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,790.82 : 2,879,858.40 = 499,859.20 : x
  2. Step 2: Convert to fraction form
    1,919,790.82/2,879,858.40 = 499,859.20/x
  3. Step 3: Cross multiply
    1,919,790.82x = 2,879,858.40 × 499,859.20
  4. Step 4: Simplify right side
    1,919,790.82x = 1,439,523,715,937.28
  5. Step 5: Solve for x
    x = 1,439,523,715,937.28/1,919,790.82
  6. Step 6: Final answer
    x = 749,833.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.